Landen Corporation uses job$-$order costing. At the beginning of the year, it made the following estimates:

Direct $1$ abor$-$hours required to support estimated production

Machine$-$hours required to support estimated production Fixed manufacturing overhead cost

Variable manufacturing overhead cost per direct labor$-$hour

variable manufacturing overhead cost pen machine$-$hour

$75,000$

$37,500$

$225,000$

$$1\mathrm{.}60$

$$3\mathrm{.}20$

During the year, Job $550$ was started and completed. The following information pertains to this job:

Required:

Assume Landen has historically used a plantwide predetermined overhead rate with direct labor$-$hours as the allocation base. Under this approach:

a$.$ Compute the plantwide predetermined overhead rate

b$.$ Compute the total manufacturing cost of Job $550.$

c$.$ If Landen uses a markup percentage of $200\%$ of its total manufacturing cost, what selling price would it establish for Job $550?$

Assume Landen's controller believes that machine$-$hours is a better allocation base than direct labor$-$hours. Under this approach:

a$.$ Compute the plantwide predetermined overhead rate.

b$.$ Compute the total manufacturing cost of Job $550.$

c$.$ If Landen uses a markup percentage of $200\%$ of its total manufacturing cost. what selling price would it establish for Job $550?$

Note: Round your intermediate calculations to $2$ decimal places. Round your Predetermined Overhead Rate answers to $2$ decimal places and all other answers to the nearest whole dollar.

$\backslash$table$[[1.$ Direct labor$-$hours:,,$],[1$a$.$ Predetermined overhead rate,,per DLH$],[1$b$.$ Total manufacturing cost of Job $550,,],[1$c$.$ Selling price,,$],[2.$ Machine$-$hours:,,$],[2$a$.$ Predetermined overhead rate,,$],[2$b$.$ Total manufacturing cost of Job $550,,$per MH$],[2$c$.$ Selling price,,$]]$